19 MPG combined: that’s what you can expect from the 2023 Lexus RC F with its strong 5.0L naturally aspirated V8. This isn’t a Prius, and no one shopping for one expects it to be. The RC F is a statement. It’s a commitment to visceral driving pleasure, a middle finger to the dominance of turbocharged engines, and the enduring appeal of old-school performance. The fuel economy is simply part of the deal, accepted by those who crave that unique Lexus V8 experience.

City and highway performance

The RC F’s EPA ratings break down to 16 MPG in the city and 24 MPG on the highway. The city figure reflects the engine’s thirst when dealing with stop-and-go traffic, a scenario where its displacement and naturally aspirated nature work against it. The highway figure, while better, still isn’t great. This is largely because the engine needs to work harder to overcome aerodynamic drag at higher speeds, even with the eight-speed automatic transmission doing its best to keep RPMs relatively low. This is also the result of that glorious V8: you can’t get nearly 500 horsepower without burning some serious fuel.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2023 Lexus RC F is $3,050. This figure is based on driving 15,000 miles per year, with 55% of those miles being city driving and 45% being highway driving. It also assumes the use of gasoline priced at the national average. While this is a useful benchmark, your actual fuel costs will vary depending on your driving habits, the price of fuel in your area, and the specific blend of gasoline you use.

Real-world expectations

While the EPA provides a standardized test, real-world mileage often differs. RC F owners frequently report figures close to the EPA estimates, though aggressive driving will quickly drop fuel economy below 16 MPG in the city. On long highway trips at a steady pace, achieving or even slightly exceeding the 24 MPG rating is possible, but requires a conscious effort to drive conservatively. The RC F’s soundtrack and responsive throttle make restraint challenging. Many owners accept the penalty for enjoying the full range of the car’s capabilities.

How it compares

Compared to its competitors, the RC F’s fuel economy is predictably lower than vehicles prioritizing efficiency. The BMW M4, for example, achieves 16 MPG city, 23 MPG highway, and 19 MPG combined with its turbocharged inline-six power plant. Despite the similar combined MPG rating, that BMW will still pull ahead on the highway. The Cadillac CT5-V, while not a direct competitor in terms of overall character, manages 18 MPG city, 27 MPG highway, and 21 MPG combined with its supercharged V8, highlighting how forced induction can sometimes yield better highway efficiency. The Audi RS5, with its twin-turbo V6, lands around 18 MPG city, 26 MPG highway, and 21 MPG combined, also outperforming the RC F. But buyers choose the RC F for the pure, unadulterated feel of its naturally aspirated V8, a trait becoming increasingly rare. For those interested in RC MPG across all years, detailed statistics are available.

Tips to maximize efficiency

The RC F is first and foremost a performance machine, but some techniques can help you get more miles from each gallon. Avoid aggressive acceleration and hard braking. The RC F’s responsive throttle invites enthusiastic driving, but a gentle foot will drastically improve fuel consumption, especially in urban environments.

Consider using the car’s “Normal” or “Eco” driving modes when you don’t need maximum performance. These modes remap the throttle response and shift points to prioritize fuel efficiency. While they won’t transform the RC F into a hypermiler, they can make a noticeable difference in day-to-day driving.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressure regularly and maintain the recommended levels specified on the tire placard.

Minimize idling. Letting the engine idle for extended periods wastes fuel. If you’re stopped for more than a minute, it’s generally more efficient to turn off the engine and restart it.

Regular maintenance is important. A properly maintained engine runs more efficiently. Follow the recommended maintenance schedule for your RC F, including oil changes, filter replacements, and spark plug replacements. For all all Lexus fuel economy data, consult the official resources. This will keep your engine running smoothly and help it achieve its best possible fuel economy.